the project as planned we’ll have to work two more hours a day.A. CompletingB. CompleteC

问题补充：

the project as planned, we’ll have to work two more hours a day.

A. Completing

B. Complete

C. Completed

D. To complete

答案：

A. Completing

B. Complete

C. Completed

(答案→)D. To complete

解析：考查非谓语动词。此处用动词不定式作状语，表示目的。句意：为了按计划完成工程，我们不得不每天多工作两个小时。故D正确。